基于 CiteSpace 的农田安全利用研究态势分析.

【Objective】The study aimed to analyze the situation of safe utilization of farmland based on CiteSpace, so as to provide reference basis for sustainable use of cultivated land resource in China.【Method】CiteSpace VI was used to analyze the information of 1419 literatures in the field of farmland safe utilization from 2000 to 2022 from China National Knowledge Infrastructure（CNKI）. Price theory was used to calculate the core author group, and the conservation and utilization situation of cultivated land resources in China was evaluated.【Result】From 2000 to 2022, the problem of heavy metal pollution in farmland in China had become more and more serious. The number of annual publications in the field of safe utilization research had been rising rapidly in a wavy fashion. Since 2003, experts and scholars had paid more and more attention to this research field. Analysis of the main research strength results showed that the University of Chinese Academy of Sciences, Institute of Soil Sciences of Chinese Academy of Sciences, Agro-environmental Protection Institute of Ministry of Agriculture and Social Affairs, Institute of Geographic Sciences and Natural Resources Research of Chinese Academy of Sciences and College of Resources and Environment of Yunnan Agricultural University were the top 5 institutions of publishing articles, with 70, 63, 36, 35 and 19 articles published respectively. However, other research institutions had low connectivity density and weak cooperation basis. Chen Tongbin, Song Bo, Luo Yongming, Zhan Fangdong and Wu Longhua were the top 5 authors with 24, 20, 17, 15 and 15 articles published respectively, but the centrality of the top 10 authors was low, ranging from 0 to 0.06. Results of keyword co-occurrence and cluster analysis showed that source resolution, passivation remediation, passivation agent, biochar, cadmium pollution, wheat and health risk emerged keywords in recent years, and the intensity of the emergence was 5.30, 5.19, 4.57, 4.75, 4.64, 3.34 and 3.81, respectively. The above keywords related topics were the main research directions of current and future research fields of farmland safety use; Phytoremediation, safe production of crop and heavy metal pollution and risk assessment of farmland soil were the trending research point of many experts and scholars.【Conclusion】From 2000 to 2022, the problem of heavy metal pollution in farmland in China has become increasingly serious. The number of annual articles published in the field of farmland safety utilization has risen rapidly in a wavy way on the whole. However, the centrality of the top 10 authors in the number of articles published is low, and the connection density between most research institutions is low, and the basis for cooperation is weak. Therefore, it is suggested to further strengthen the collaborative innovation research among core authors and promote the cooperation and exchange between research institutions, so as to promote the rapid development of farmland safe use research, promoting the protection and utilization of cultivated land resources in China. [ABSTRACT FROM AUTHOR]